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The Power of Circles

The Power of Circles. THE WONDER OF PI. The Power of Circles. 1. Click on a word or formula to answer a question about that topic. Directions. 2. If you get the answer right, you can click on a new word. 3. Clear all the words from the screen.

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The Power of Circles

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  1. The Power of Circles THE WONDER OF PI

  2. The Power of Circles 1. Click on a word or formula to answer a question about that topic Directions 2. If you get the answer right, you can click on a new word. 3. Clear all the words from the screen. Don’t forget, if you are given the diameter you need to FIND THE RADIUS!!

  3. The Power of Circles area circumference center circumference area diameter Diameter radius Finished? radius

  4. Circumference What is circumference? The area inside of a circle. The distance around a circle. The height of a cylinder. The distance around a rectangle.

  5. Nice try. Check your answer and try again. Click Peter Pi for help

  6. Circumference What is the formula for circumference? Length x width Base x height 2r

  7. Nice try. Check your answer and try again. Click Peter Pi for help

  8. Area What is the formula for the area of a circle? Length x width Base x height 2r

  9. Nice try. Check your answer and try again. Click Peter Pi for help

  10. Area What is area? The amount of space inside a 2D shape The amount of space inside a 3D shape The distance around a shape The amount in pi

  11. Nice try. Check your answer and try again. Click Peter Pi for help

  12. Diameter How do you find diameter if you are given the radius? Divide the radius by pi Multiply the radius by pi Divide the radius by 2 Multiple the radius by 2

  13. Nice try. Check your answer and try again. Click Peter Pi for help

  14. Diameter What is a Diameter? The amount of space inside a 2D shape The distance from any point on the outside of a circle to the center. The distance from one side of a circle to the other going through the center. The distance around the side of a circle.

  15. Nice try. Check your answer and try again. Click Peter Pi for help

  16. Radius How do you find radius if you are given the diameter? Divide the diameter by pi Multiply the diameter by pi Divide the diameter by 2 Multiple the diameter by 2

  17. Nice try. Check your answer and try again. Click Peter Pi for help

  18. Radius What is a radius? The amount of space inside a 2D shape The distance from any point on the outside of a circle to the center. The distance from one side of a circle to the other going through the center. The distance around the side of a circle.

  19. Nice try. Check your answer and try again. Click Peter Pi for help

  20. Center What is a center? The middle point of a circle Any point inside a circle The middle of the diameter Any point on the outside of a circle

  21. Nice try. Check your answer and try again. Click Peter Pi for help

  22. Pi Which of the follow is NOT true about pi? It is goes on forever without repeating It is a letter in the Greek alphabet It is the ratio between the circumference and diameter It is exactly 3.14

  23. Nice try. Check your answer and try again. Click Peter Pi for help

  24. C=2πr What is the circumference of this circle? 15.7cm 7.64cm 31.4cm 5.87cm 5cm

  25. Nice try. Check your answer and try again. Click Peter Pi for help

  26. What is the circumference of this circle? 18.4 27.2 50.12 57.77 9.2 mm

  27. Nice try. Check your answer and try again. Click Peter Pi for help

  28. What is the area of this circle? 22.60 40.69 43.96 55.21 3.6mm

  29. Nice try. Check your answer and try again. Click Peter Pi for help

  30. What is the area of this circle? 23.23 42.98 171.95 46.47 7.4cm

  31. Nice try. Check your answer and try again. Click Peter Pi for help

  32. Well Done! Now try the next word!

  33. Hazzah! You are now the pi master!!

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